Room divider unit



FIG. 1 is a right side perspective view of a room divider unit showing my new design;

FIG. 2 is a top plan view of the unit of FIG. 1;

FIG. 3 is a right side elevational view of the unit of FIG. 1; and

FIG. 4 is a left side elevational view of the unit of FIG. 1. 

The ornamental design for a room divider unit, as shown. 